Distal trisomy of the short arm of chromosome 6 is characterized by pre- and postnatal growth retardation, a pattern of specific facial features (mostly of the eyes), microcephaly, and developmental delay. The disease is Monarch Disease Ontology term MONDO_0015769 (distal trisomy 6p). Also known as: distal duplication 6p, distal trisomy type 6p, telomeric duplication 6p, trisomy 6pter.